Users that have updated to IOS 8 have reported that they can no longer connect afterwards. Uninstalling the profile and reinstalling it will fix this issue:
1. Go to Settings > General and then Profile to the bottom right hand side. Tap the Watch UK TV Abroad profile and then tap Delete Profile. If prompted enter your iPad unlock code.
2. Login to your My Account area and then reinstall the profile via the Download Auto Setup button on the iPad setup guide before trying to connect again.